Secondary battery

摘要

A secondary battery including an electrode assembly and a case accommodating the electrode assembly, the case including a bottom surface, a first pair of parallel sidewalls and a second pair of parallel sidewalls, connected with the bottom surface, and a corner portion formed by an intersection of each of the first pair of parallel sidewalls and the bottom surface, the corner portion having a first radius of curvature at a first region, and a second radius of curvature different from the first radius of curvature at a second region.

主权项

1. A secondary battery comprising:
an electrode assembly; and a case accommodating the electrode assembly, the case comprising:
a bottom surface;a first pair of parallel sidewalls having a first width and being connected with the bottom surface, the electrode assembly being located between the first pair of parallel sidewalls;a second pair of parallel sidewalls having a second width smaller than the first width and being connected with the bottom surface, the electrode assembly being located between the second pair of parallel sidewalls, each sidewall of the second pair of parallel sidewalls being connected to each sidewall of the first pair of parallel sidewalls; anda corner portion formed by an intersection of each of the first pair of parallel sidewalls and the bottom surface, the corner portion having a first radius of curvature at a first region along an edge of the corner portion, and a second radius of curvature different from the first radius of curvature at a second region adjacent the first region along the edge of the corner portion.